OSchip
/
llvm-project
mirror of https://github.com/THU-DSP-LAB/llvm-project.git
13
0
Fork 6
Code Issues Packages Projects Releases Wiki Activity
398,309 Commits 31 Branches 0 Tags 2.2 GiB
Commit Graph

4 Commits

Author SHA1 Message Date
Roman Lebedev 4be8707e64
[SimplifyCFG] Teach FoldTwoEntryPHINode() to preserve DomTree 
Still boring, simply drop all edges to successors of DomBlock,
and add an edge to to BB instead.
 2020-12-20 00:18:33 +03:00
Roman Lebedev b43b77ff9b
[NFCI][SimlifyCFG] simplifyOnce(): also perform DomTree validation 
And that exposes that a number of tests don't *actually* manage to
maintain DomTree validity, which is inline with my observations.

Once again, SimlifyCFG pass currently does not require/preserve DomTree
by default, so this is effectively NFC.
 2020-12-20 00:18:32 +03:00
Roman Lebedev 164e0847a5
[SimplifyCFG] DeleteDeadBlock() already knows how to preserve DomTree 
... so just ensure that we pass DomTreeUpdater it into it.

Fixes DomTree preservation for a large number of tests,
all of which are marked as such so that they do not regress.
 2020-12-18 00:37:21 +03:00
Sam Parker a5405a2f05 [NFC][ARM] Add SimplifyCFG tests 2020-07-14 11:10:11 +01:00